Adding-machine.



C. WALES.

ADDINGXMAGHINR AFPLXUATIQN Hmm Arima, 190s.

Patented Mar. 23, 1915.

3 SHEETS-SHEET l.

G.' WALES.

ADDING MACHINE.

A APPLICATION FILED APB.18, 1908.

Y Patented Mar. 23 5.

l3 SHEETS-SHE c. WALESt DDNG MACHINE.

APPLICATION FILED APRIB. 1908.

1,182,753. Patented Ma1z23, 1915.

3 SHBBTS-BHEBT 3.

UnrrED straitEs ;ra'rulw carros.

CHARLES WALES, 01?' DETBGIT, MICHIGAN,4 ASSIGNOR TO BURROUG-HS .ADDING MACHINE COMPANY, OF DETRGIT, MICHIGAN, A CORPORATIQN OF MICHIGAN Annina-MACHINE.'

mmm

Speccation of Letters Patent.

v Patented Mar. .23, 1915.

Application led April 18, 1908. Serial No. 427.812,53.

To aZZ whom 'it ma. concern Be it known t at I, CHARLES WALES, a

Acitizen of the United States, residin at Deltroit, in the county of Wayne and tate of "Michigan, have invented' certain new and :juseful Improvements in Adding-Machines,

of which 'the following is a specification.

l` The present invention relates more p articularly to that department of an adding and listing machine which comprises the depressible keys bearing various inscriptions denoting amounts and the depression of ywhich ordinarily results in unlatching the adding mechanism and setting stops to determine the extent of movement thereof..

One object of the invention is 'to provide keys and the depression of some other or the same keys again before the cycle of opera` Ition of the machine is concluded. It will be obvious that in a machine so organized it will sometimes happen that one or more key stops may stand in the path of the abutment pieces of the adding mechanism as the same are returned 'to normal. lThe present invention provides aconstruction better adapted for the necessary coperative action of such abutment pieces and key stops where the former must pass by the key stops in returning to normal and upon again advancing to perform the usual function of limiting the extent of movement of the adding mechanism by abutment against key stops or initial zero stops.

Another object of the invention is to adapt the keyboard and keyboard mechanism, including the key stops,to an adding machine organization in which the adding mechanism is in lrear of the keyboard and the key stops therefore `projected toward the rear of the machine by depression of keys. Novel means are provided whereby not only does the depression of an amount key result in projecting the connected key stop rearwardly into the path of the associated abutn ment piece, but also operates other connecserves to locate the zero type "n printing position.

With these and incident-ai objects in view,

straight top edges.

the invention consists of various novel features'of construction and combinations of parts the essential elements of which aro et forth in the appended claims and aprefer-red form of embodiment of which is'illustrated in the accompanying drawingsy and described in detail hereinafter.

Of said drawings, Figure l represents in left side elevation a certain portion of an organized adding machine to which theyA improvements of the plied, all parts illustrated being shown at normal; Fig. 2 represents the key board in plan view partly Abroken .away to disclose some parts on a lower plane, certain of which appear in horizontal section; Fig. 3v is a fragmentary sectional elevation illustrating the operation of a single amount key, (some parts being broken to economize space) the dotted lines illustrating theeifect of depressing such key; Fig. 4 is a fragmentary rear elevation of the keyboard illustrating the means for temporari'ly'holding keysI deamount key in perspective.

The right hand one of a. set of-reciprocat# ing segmental adding racks 6 is shown in Fig. l, and one of a set of adding wheels 6 in mesh therewith, the racks being mounted on sector-shaped carriers or levers 6b. On curved downward extensions of said carriers there are pivotally mounted abutment pieces 8() with beveled fronts and Springs 60b project the beveled portions of the abutment pieces forwardly beyond the rier extensions 60,: holding said abutment pieces against projections struck:v un lout of thecarriers as shown in Fig. 1. There is erected within the casing of the machine, just forward of the segmental racks, a vertical plate 21 curved to correspond with the curvature of thesegmental racks and apertured in vertical rows equi-distantly for the accommodation of stop blades in series of tens with any one of which the associated abutment piece 60a may coperate to deterfront edges of said carmine the extent of movement of the rack pins or studs 21d on the lower ends of the stems 21e of the amount keys 21g 'respectively. rEhe latter are arranged'as usual in several' parallel rows running from front to rear and the keys of each row inscribed with numerals from 1 to 9. The remaining stop bl adeisi 21g normally protrude rearwardly froiirthe plate 21 'for the' purpose 'of having the abutment pieces 60*1 encounter them and 1D thus limit the movement of the type carrying levers so as toset up the 'zero type for printing, it'being understood that the rack carriers 6 will be suitably--eonneoted wlth type earrying levers.

The stems 21e of the amount keys slide through slots in a keyboard plate 21 and the key stemsare furtherv guided by slots 1n a! series o transversely extending angle brackets 21 below the horizontal'portions 2e of which extend 'the stop rods 21". The keys are normally upheld -by springs 21J surrounding the stems between suitable shoulders on' the keys and the said brackets. It 'will be obvious that depression of any 25 key will cause rearward longitudinal movemost strip or rod of a series is supported-at its forward end by reason of the engagement of its forward vextension 21m over the rod'2l which v'extends -under and supports the next lower 'stop rod or strip by engaging 42 under that portion thereof-just in rear of the obliquely slotted portion'. Thus the number 'of supportingfcross rods can be reduced, The strips or rods are held from lateral displacement at their forward ends 45 by engagement with slots or notches in the v ertie'al portions oie the angle brackets 21i as indicated in Figs. 1 and 2, each rod being thus guided by two of the angle brackets by reasonof the fact that the forward exteni'sio'nj 21 nv engages the notch-of the next lower l bracket to that one in whichv the rod' engages instorward of its obliquely slotted portion.

itis not only necessary that the depression oan amount key shall thrust its' assoelated stop` blade' into the path 'of the abut- `mentpiece 60a, but by the vsame act the initial stop blade 21g must of course be withdrawn from the path of 'said abutment piece. rlhe initial stop blades are formed upon the 6G rear ends of rods 212'l which at their iorward 'ends engage in notches oi the lowermost angle bracket 21i and vrest upon the lowerinost cross rod 21k as shown in Figs. 1 and 9' These initial stop rods have joined to 135 there near heir forward ends tii'ustfrods essayes of an angle bracket 21t similar to the brackets 21i`a'nd serving a similar function in guidingthe uppermost stop rods 21". Spi-- ral l'spring's21 -'connecting the crank arms 21r with 'hxed studs on the plate 21 serve to draw the lrods 21q rearwardly and thereby hold the initial stop blades normally projected rearwardly from the plate 21 in .the paths of the abutment pieces Each vertical rock shaft 2lB has a. series of nine lateral lugs 21v projecting oppositely to the crank arms 21r and each of the stop rods 211 is formed with a downwardly and rearwardly projecting linger 21W in line with one of sai lugs and extending immediately in front of the same, as clearly illustrated in Figs. 1, 2 and 3. When an amount key is depressed and its stop rod thrust rearwardly the linger 21v operates upon a lug .21v and turns the shaft 21s against the stress of the spring 21 thus forcing the thrust rod 2lb1 forward and withdrawing the initial stop blade 21g from the path of the abutment piece 60a.

The amount keys are temporarily held in depressed position' by the engagement of rounded lugs 21X formed upon the sidesof their stems, with widepawls or shutters21y pivotally 'mounted under the keyboard plate 211%= in angle brackets 211 and 211a and drawn into engagement with the key stems by springs 212` as shown in Fig. 4. There is one of these wide pawls or shutters for each row of keys and the depression of any key inthe row displaces the shutter by the engagement of the rounded lug 21X with the same, and then the shutter springs in over the lug to hold the key depressed. Depression of another key in the row will of course result in releasing the first depressed key. The shutters at their upper ends have inclined 'projecting portions 2O adapted to be operated upon with a camming eii'ect by rstuds 20l on a rook shaft 20h. rlhe oscillation of this rock shaft by hand serves to release erroneously depressed keys and said lshaft may also serve toeifeot an automatic release of keys the 4course of an operation ofthe machine. y l

lt will be seen that the broad substantial stop blades are well adapted for coperation with the abutment pieces when the'latter are moving in either direction. 'When' a rack carrier is advancing, z'. e. swinging upwardly, the upper right angle edge ofits abutment piecev will come squarely into coiftaet with the under surface of the projected stop blade insuring a definite, positive and uniformpositioning ofthe rack carrier.` H

iso

an' ea'rly'releasev of keys is to take place, permitting projection of a. lower stop blade at a time when the abutment piece is upwardly beyond it, then in the ensuing downward swing of the Tack-carrier, the beveled front edge of the abutment piece will wipe down over the blade, the spring 6()b yielding until the upper edge of the abutment piece has passed by, when the latter instantly snaps forward to come squarely into Contact with theblade when the rack carrier again advanccs.

It will further be seen that the arrangement of keys and stop rods provides for c ooperative action between the keyboard sece tion or department of the machine and reg-y istering or adding mechanism located to the rear and not extending under, the keyboard, which may thus be as low desired, the arrangement furthermore permitting location of theadding wheels just upwardly i beyond the keyboard Where they can be conveniently read.'

The direct interconnection between amount stops and zero stops insures' the latters always standing ready to intercept the rack carriers unless amount keys have been depressed, and vice versa, insures the complete Withdrawal of zero stops when amount keys are depressed;

Finally it is to be noted that the construction throughout is compact and easy to assemble and handle as a distinct section or department of the machine; that there is practically no chance for derangement of, parts; and that the character of the several parts and their relative arrangement make for great stability and durability.

What is claimed is: Y

1. In a machine of the character described, the combination of a reciprocating actuator having a pass-by abutment piece, and a series of normally retracted stop blades adapted to be projected into the path of said abutment piece to limit the advance movement of the actuator, the abutment piece adapted to pass by a projected stop blade in the return movement of the actuator and then reassume position for abutting the same in, advance movement of the actuator.

2. In a machine of the character described, the combination of a reciprocating actuator having a pass-by abutment piece, a seriesof normally retracted stop blades adapted to be projected into the path of said abutment piece to limit the advance movement of the actuator, the abutment'piece vadapted to pass by a projected stop blade in the return movement of the actuator and then reassume position for abutting the same in advance movement of the actuator, a normally projected zero stop blade, and means for retracting the latter by projection of one of the first mentioned stop blades.

3. In a machine of the character described,

the combination of a recip'ro'catingactuator having a pass-by abutment piece, and a series of normally retracted slide-rods hav ing stop blades adapted to be projected into the path of said abutment piece to limit the advance movement of the actuator, theabutment piece adapted to pass by a projected stop blade in the return movement of "the actuator and then reassume position for abutting the same in advance movement of, the actuator.

4. In a machine of the character described, the combination'of a reciprocating actuator havinga pass-by abutment piece, a series of normally retracted slide reds having sto blades adapted to be projected into the pat of said abutment piece to limit the advance movement of the actuator, the abutment piece adapted to pass by a projected stop blade in the return movement of the actuator and then reassume position for abutting the same in advance movement of the' actuator, a slide rod having a zero stop 'blade normally projected into the path ofy the abutment4 piece, and operative. connections between such rod and the first mentioned rod for causing retraction ofthe former by projection of the latter.

5. In a machine of the character described the combination of a reciprocating actuator having a pass-by abutment piece, a series of normally retracted slide rods having stop blades adapted to be projected into thepath of said abutment piece to limit the advance movement of the actuator, the abutment piece adapted to pass by a projected stop bladein the return movement of the actuL ator and then reassume position for abutting the same in advance movement of the actu ator, and depressible keys engaged with the slide rod's for advancing and. retracting the same.

6. In a machine of the character described, the combination of a reciprocating actuator having a pass-by abutment piece, a series of normally retracted slide rods having stop blades adapted to be projected into the path of said abutment piece to limit the advance movement of the actuator,the abutment piece adapted to pass by a projected stop blade in the return movement of the actuator and then reassume position for abutting the same in advance movement of the actuator, and the slide rods having obliquely slotted portions; and spring upheld depressible keys having studs engaging the slots of the rods respectively.

7 In a machine of the character de-l scribed, the combination of a reciprocating actuator having a pass-by abutment piece, a series of normally retracted slide rods having stop blades adapted to be projected intofthe path of said abutment piece to limit the advance movement of the actuator, the abutment piece adapted to pass by a project- Ved stop blade in the return movement of the 'between such rod and the first mentioned rod for causing retraction of the former by projection of the latter, said connections comprising a shaft cranked to the zero rod and .adapted to be turned by any one of the other rods.

8. In a machine of the character described, the combination of a reciprocating actuator having a pass-by abutment piece, a series of normally retracted slide rods having stop blades adapted to be projected into thepath of said abutment piece to limit the advance movement of the actuator, the abutment piece adapted to pass by a projected s top blade inthe return movement of the actuator and then reassume position for abutting the same in advance movement of the actuator, a slide rod having a zero stop blade normally projected into the path of the abutment piece, and operative connections between such rod and the first mentioned rod for causing retraction of the former by projection of the latter, said connections comprising a shaft having lateral projections to be acted upon by the first mentioned slide rods and a thrust rod connected to the zero slide rod and cranked to said shaft.

9. In a machine of the character derods, a normally projected zero stop rod,-

and operating connections between the latter and the other rods comprising a rock shaft having lateral projections to be acted upon by the first mentioned rods respec` tively, and a thrust rod cranked to the shaft and connected with the zero rod.

10. In a machine of the character described, the combination of rows of Vertical depressible keys, horizontal slide rods having oblique slots engaged by said keys, said rods extending rearwardly from said keys and terminating in substantially vertical series of stops.

11. In a machine of the character described, the combination of a reciprocating actuator, a series of normally retracted stop rods arranged horizontally one above another, a similar though normally projected zero stop rod, keys operatively connected with the first mentioned stop rods for projecting the same respectively, and a vertical rock shaft having a series of lateral projections one for each of said first mentioned stop rods and 'adapted to be acted upon by them respectively, said rcck shaft being operatively connected with the aforesaid vzero stop rod for retracting the latter upon depression of any one of said keys.

CHARLES WALES.

Witnesses:

R. S. MIELERT, J. Gr. VINCENT.

Copies o! this patent may be obtained for ve c'ents each. by addressing the Commissioner of Patents,

Washington, D. C." 

